Thanks Mike. I am BCC'ing this to the other groups. Best, Ron ---------- Forwarded message --------- From: 'Michael MacCracken' via Healthy Planet Action Coalition (HPAC) < [email protected]> Date: Tue, Mar 3, 2026 at 1:31 PM Subject: [HPAC] REMINDER: HPAC Briefing Thursday, March 5 on Atmospheric Methane Removal (Time is 4:30 EST--AN HOUR EARLIER THAN REGULAR TIME) To: HPAC-Healthy-Planet-Action-Coalition < [email protected]>
REMINDER: This Thursday at 4:30 PM EST (so one hour earlier that normal starting time), HPAC is hosting a Webinar on potential approaches for reducing the atmospheric methane concentration. As indicated below, the Webinar will feature presentations by two scientists from Spark Climate Solutions, an organization that is sponsoring research on this issue. -------- Forwarded Message -------- Subject: HPAC Briefing Thursday, March 5 on Atmospheric Methane Removal (Time is 4:30 EST--an hour earlier than usual) Date: Fri, 27 Feb 2026 12:10:30 -0500 From: Michael MacCracken <[email protected]> <[email protected]> To: HPAC-Healthy-Planet-Action-Coalition <[email protected]> <[email protected]> *Dear HPAC Colleagues:* I’m pleased to announce that on *Thursday, March 5, 2026 at 4:30 PM EST (so one hour earlier than our normal starting time) *we will have an HPAC presentation by two experts on atmospheric methane from Spark Climate Solutions (https://www.sparkclimate.org). Spark Climate Solutions sponsors a research portfolio considering, among other things, the potential viability of reducing methane’s atmospheric lifetime as a means of reducing its radiative forcing. Our speakers will be Dr. Megan Melamed and Dr. Katrine Gorham, who together will present a talk titled “Atmospheric Methane Removal: Exploring the Viability of a Hypothesized Open-System Climate Intervention.” An abstract of the talk and their bios are included below. After the talk, there will be time for questions and discussion. We look forward to seeing you there: https://us02web.zoom.us/j/88954851189?pwd=2OEdvleb4UpYfK4a950ryohFWcw93F.1 (passcode 662519). Best Regards, Mike MacCracken for HPAC *Abstract:* Methane emissions have contributed to roughly 30% (0.5˚C) of current global warming since preindustrial times, second only to carbon dioxide. Even with aggressive emissions reduction strategies, atmospheric methane concentrations are expected to remain high due to hard-to-abate sources, including warming-induced emissions from permafrost thaw and warming of tropical wetlands. While cutting emissions is essential, existing mitigation tools may not be enough to manage climate risk. Methane removal has emerged as a potential climate strategy to help reduce climate risk. But the field is in its early stages and needs foundational research, coordination, and rapid efforts to rigorously assess different potential methane removal pathways. It is a complex topic with many scientific, social, legal, and governance dimensions that are not well understood, along with moral and ethical considerations specific to open-system interventions. This presentation introduces Spark Climate Solutions' Methane Removal Program and its support of foundational research to understand which methane removal approaches—if any—may be climate beneficial, socially acceptable, and cost-plausible with a pathway to scale. *Bios* *Megan Melamed, PhD, Methane Removal Program Lead* Megan leads Spark’s methane removal program, leveraging her expertise as an atmospheric scientist and strategic leader to accelerate the assessment of the viability of methane removal to inform the climate solutions portfolio. Before joining Spark, Megan served as Deputy Director of NOAA’s Chemical Sciences Laboratory, and earlier in her career she was Executive Director of the International Global Atmospheric Chemistry (IGAC) Project. She also served as an AAAS Science & Technology Policy Fellow at the U.S. EPA and as an NSF International Research Fellow in Mexico City. Megan studied environmental engineering at the University of Colorado Boulder (PhD ’06). *Katrine Gorham, PhD, Methane Removal Program Manager* Katrine leads the methane removal research funding program and scientific roadmapping at Spark. Her work focuses on engaging with the scientific community to support the development and growth of a robust research ecosystem for the emerging field of methane removal. Prior to Spark, Katrine led scientific programs and operations, most recently for the NSF Office of Polar Programs Arctic Research Support and Logistics contract, as well as for the NSF National Ecological Observatory Network and the UC Davis Air Quality Research Center. Katrine studied atmospheric chemistry at the University of California Irvine (PhD ’09). -- You received this message because you are subscribed to the Google Groups "Healthy Planet Action Coalition (HPAC)" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/healthy-planet-action-coalition/86302023-065a-4b66-87a1-6f910900fede%40comcast.net <https://groups.google.com/d/msgid/healthy-planet-action-coalition/86302023-065a-4b66-87a1-6f910900fede%40comcast.net?utm_medium=email&utm_source=footer> . -- Healthy Planet Action Coalition <http://www.healthyplanetaction.org> YouTube Channel <https://www.youtube.com/channel/UCdt5vatByfyg-Pm9Vu6ahZg> @HPACoalition (Bluesky and Twitter/X) SAI Deployment and Risks to Human Civilization: The Question is No Longer If, but How, When, Where, and by Whom? <https://drive.google.com/file/d/1hvklktEZSciny9JnuMaU4Jn6_2pRN8w6/view?usp=sharing> 2025 Baiman, MacCracken and Slater. AGU Poster On-line Conference_The Global Heating Emergency:_Preventing 2.0C by 2040: What's the Plan? <https://www.youtube.com/watch?v=AmAnfVCGVeI> Addressing the Urgent Need for Direct Climate Cooling: Rationale and Options <https://academic.oup.com/oocc/article/4/1/kgae014/7731760> Baiman et al. 2024. *Oxford Open Climate Change* An Open Letter to the IMO Supporting Maritime Transport that Cools the Atmosphere While Preserving Air Quality Benefits <https://academic.oup.com/oocc/article/4/1/kgae008/7706251>. Baiman et al. 2024. *Oxford Open Climate Change* -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/geoengineering/CAPhUB9AcGpMmKsR99nKG3uPUDQC8T8fOtvmPVkQONMEZCCm5Cw%40mail.gmail.com.
